2023ApJ...949L..16N

Query : 2023ApJ...949L..16N

2023ApJ...949L..16N - Astrophys. J., 949, L16 (2023/May-3)

Multiple Channels for Nitrogen Pollution by Metal-enriched Supermassive Stars and Implications for GN-z11.

NAGELE C. and UMEDA H.

Abstract (from CDS):

GN-z11 is an unusually luminous high-redshift galaxy that was recently observed to have strong nitrogen lines while at the same time lacking traditional signatures of active galactic nucleus activity. These observations have been interpreted as a supersolar nitrogen abundance, which is challenging to explain with standard stellar evolution and supernova enrichment. We present simulations of four models of metal-enriched supermassive stars after the zero age main sequence, which produce supersolar nitrogen consistent with the observations of GN-z11. We then show that the most-massive model ends its life in a violent explosion that results in even greater nitrogen pollution.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Gravitation - Isotopic abundances - Stellar evolution

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 [OBV2016] GN-z11 EmG 12 36 25.46 +62 14 31.4           ~ 247 0

Query : 2023ApJ...949L..16N

Basic data :
[OBV2016] GN-z11 -- Emission-line galaxy
Other object types: otypes_help 		G (2015ApJ,[BIG2010],...), EmG (2023ApJS), G? ([FBS2022]), NIR (JADES)
ICRS coord. (ep=J2000) : 		12 36 25.46 +62 14 31.4 (Near-IR) [ ] C 2014ApJ...786..108O
FK4 coord. (ep=B1950 eq=1950) : 		12 34 11.30 +62 31 01.5 [ ]
Gal coord. (ep=J2000) : 		125.96361 +54.79773 [ ]
Radial velocity / Redshift / cz : 		V(km/s) 295373 [~] / z(emission) 10.604423 [~] / cz 3179126.04 [~]
   (NIR) C 2023ApJS..269...16R
Fluxes (2) :
J (AB) 25.93 [~] D 2015ApJ...803...34B
H (AB) 25.8 [0.3] D 2010ApJ...725.1587B
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Identifiers (10) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

JADES-GN+189.10604+62.24204 JADES-GN NS 5591 [FBS2022] GOODSN-z910-35589 [SWM2014] GOODS-N 20253
JADES-GN NS 3991 [BIG2010] GNS-JD2 [OBI2014] GN-z10-1
JADES-GN+189.10605+62.24205 [BIO2015] GNDJ-2545743169 [OBV2016] GN-z11

References (247 between 1850 and 2026) (Total 247)
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